Vertical profiles of black carbon and nanoparticles pollutants measured by a tethered balloon in Longyearbyen (Svalbard islands)

Cappelletti, David; Petroselli, Chiara; Matéos, David; Herreras, M.; Ferrero, Luca; Losi, Niccolò; Gregorič, Asta; Frangipani, Claudia; Porta, Gianandrea La; Lonardi, Michael; Chernov, Dmitry; Dekhtyareva, Alena

doi:10.1016/j.atmosenv.2022.119373

Cited by 7 publications

(2 citation statements)

References 36 publications

(37 reference statements)

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“…Because of these challenges, unmanned systems have gained significant interest in aerosol properties measurement, which could minimize the error, risk, and cost in environmental research. To this end, tethered balloon systems (TBSs) have been increasingly deployed in several geographical locations to study aerosol properties, ,− gaseous air pollution, , and microphysical properties of the atmosphere. ,, …”

Section: Introductionmentioning

confidence: 99%

Tethered balloon system and High-Resolution Mass Spectrometry Reveal Increased Organonitrates Aloft Compared to the Ground Level

Vandergrift,

Dexheimer,

Zhang

et al. 2024

Environ. Sci. Technol.

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Atmospheric particles play critical roles in climate. However, significant knowledge gaps remain regarding the vertically resolved organic molecular-level composition of atmospheric particles due to aloft sampling challenges. To address this, we use a tethered balloon system at the Southern Great Plains Observatory and high-resolution mass spectrometry to, respectively, collect and characterize organic molecular formulas (MF) in the ground level and aloft (up to 750 m) samples. We show that organic MF uniquely detected aloft were dominated by organonitrates (139 MF; 54% of all uniquely detected aloft MF). Organonitrates that were uniquely detected aloft featured elevated O/C ratios (0.73 ± 0.23) compared to aloft organonitrates that were commonly observed at the ground level (0.63 ± 0.22). Unique aloft organic molecular composition was positively associated with increased cloud coverage, increased aloft relative humidity (∼40% increase compared to ground level), and decreased vertical wind variance. Furthermore, 29% of extremely low volatility organic compounds in the aloft sample were truly unique to the aloft sample compared to the ground level, emphasizing potential oligomer formation at higher altitudes. Overall, this study highlights the importance of considering vertically resolved organic molecular composition (particularly for organonitrates) and hypothesizes that aqueous phase transformations and vertical wind variance may be key variables affecting the molecular composition of aloft organic aerosol.

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Section: Introductionmentioning

confidence: 99%

Tethered balloon system and High-Resolution Mass Spectrometry Reveal Increased Organonitrates Aloft Compared to the Ground Level

Vandergrift,

Dexheimer,

Zhang

et al. 2024

Environ. Sci. Technol.

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“…For example, corresponding to the Ny-Alesund tundra landform, the Barentsburg region has higher vegetation coverage and longer glacial meltwater rivers (nearly 10 km) than the Ny-Alesund Bay River (about 3 km). Temperatures in Svalbard's topsoil can reach more than 10 • C and even approach 20 • C in summer (Cappelletti et al, 2022;Magnani et al, 2022). Therefore, shortterm warming experiments can provide a foundation for studying the effects of warming on the microbial composition and GHG release from the soil in Barentsburg.…”

Section: Introductionmentioning

confidence: 99%

Soil microorganisms and methane emissions in response to short-term warming field incubation in Svalbard

Li,

Zhu,

Yang

et al. 2023

Front. Microbiol.

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IntroductionGlobal warming is caused by greenhouse gases (GHGs). It has been found that the release of methane (CH4) from Arctic permafrost, soil, ocean, and sediment is closely related to microbial composition and soil factors resulting from warming over several months or years. However, it is unclear for how long continuous warming due to global warming affects the microbial composition and GHG release from soils along Arctic glacial meltwater rivers.MethodsIn this study, the soil upstream of the glacial meltwater river (GR) and the estuary (GR-0) in Svalbard, with strong soil heterogeneity, was subjected to short-term field incubation at 2°C (in situ temperature), 10°C, and 20°C. The incubation was carried out under anoxic conditions and lasted for few days. Bacterial composition and CH4 production potential were determined based on high-throughput sequencing and physiochemical property measurements.ResultsOur results showed no significant differences in bacterial 16S rRNA gene copy number, bacterial composition, and methanogenic potential, as measured by mcrA gene copy number and CH4 concentration, during a 7- and 13-day warming field incubation with increasing temperatures, respectively. The CH4 concentration at the GR site was higher than that at the GR-0 site, while the mcrA gene was lower at the GR site than that at the GR-0 site.DiscussionBased on the warming field incubation, our results indicate that short-term warming, which is measured in days, affects soil microbial composition and CH4 concentration less than the spatial scale, highlighting the importance of warming time in influencing CH4 release from soil. In summary, our research implied that microbial composition and CH4 emissions in soil warming do not increase in the first several days, but site specificity is more important. However, emissions will gradually increase first and then decrease as warming time increases over the long term. These results are important for understanding and exploring the GHG emission fluxes of high-latitude ecosystems under global warming.

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Detection of atmospheric aerosols and terrestrial nanoparticles collected in a populous city in southern Brazil

Bortoluzzi,

Neckel,

Bodah

et al. 2023

Environ Sci Pollut Res

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Vertical profiles of black carbon and nanoparticles pollutants measured by a tethered balloon in Longyearbyen (Svalbard islands)

Cited by 7 publications

References 36 publications

Tethered balloon system and High-Resolution Mass Spectrometry Reveal Increased Organonitrates Aloft Compared to the Ground Level

Tethered balloon system and High-Resolution Mass Spectrometry Reveal Increased Organonitrates Aloft Compared to the Ground Level

Soil microorganisms and methane emissions in response to short-term warming field incubation in Svalbard

Detection of atmospheric aerosols and terrestrial nanoparticles collected in a populous city in southern Brazil

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